Submission #71872

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
71872	2018-08-25 18:04:30	bnahmad15	One-Way Streets (CEOI17_oneway)	C++17	100 / 100	579 ms	59692 KiB

oneway

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#include <bits/stdc++.h>
#define forn(i,j,n) for(int i = (int)j;i<=(int)n;i++)
#define nfor(i,j,n) for(int i = (int)j;i>=(int)n;i--)
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
const int N = 100001,LOG = 17;
int n,m,p,u,v,x[N],y[N],is[N],cnt = 0,num[N],low[N],det[N],cc = 0,comp[N],vis[N],nxt[N],pr[N][LOG],dep[N];
pair<int,int> st[N];
vector<pair<int,pii> > g[N],g2[N];
map <pii,int> mp;
char res[N];
inline pii rev(pii a){
  if(a.second == 1)
    a.second = 2;
  else if(a.second == 2)
    a.second = 1;
  return a;
}
void dfs(int uu,int prnt){
  low[uu] = num[uu] = ++cnt;
  forn(i,0,g[uu].size()-1){
    int vv = g[uu][i].first;
    if(num[vv] == -1){
      dfs(vv,uu);
      if(low[vv] > num[uu]){
        is[g[uu][i].second.first] = 1;
      }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

oneway.cpp: In function 'int main()':
oneway.cpp:107:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&m);
  ~~~~~^~~~~~~~~~~~~~
oneway.cpp:109:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&u,&v);
   ~~~~~^~~~~~~~~~~~~~
oneway.cpp:117:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&p);
  ~~~~~^~~~~~~~~
oneway.cpp:119:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&x[i],&y[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~

• Subtask 1: 30 / 30
• Subtask 2: 30 / 30
• Subtask 3: 40 / 40